These sleek, beautiful animals live in coastal waters, hunting for fish in the sea and returning to land to give birth to their young.

When hunting underwater for fish, some seals can hold their breath for half an hour. After leaving water to warm up, sea lions and seals move around on land or ice using their flippers; their scientific classification (pinnipeds) means “fin-feet.”

A monk seal resting on a beach
Marco Garcia
For The HSUS
There's been tremendous progress in protecting them from decades of slaughter.

They are currently protected in the U.S., but sea lions and seals are still scapegoated for fish declines that have resulted from overfishing. Many Alaskan species are also threatened by habitat loss and the decline in polar ice where they’ve traditionally lived. It’s important to keep protections under the Marine Mammal Protection Act strong for both sea lions and seals.

Person about to swing club at seals laying on a beach.
Rebecca Aldworth
Did you know?

Seal milk contains lots and lots of fat, which is why their roly-poly babies can put on multiple pounds a day while they’re nursing.

dolphins performing unnaturally in captivity

SeaWorld plans to end the breeding of killer whales at its facilities and will not have orcas in any new parks opened around the world. Help spread this momentous change to other aquatic parks by not attending dolphin, whale or other marine mammal shows.

kvkirillov /